998325281 has 16 divisors (see below), whose sum is σ = 1075510656. Its totient is φ = 924354816.

The previous prime is 998325269. The next prime is 998325287. The reversal of 998325281 is 182523899.

It is a cyclic number.

It is not a de Polignac number, because 998325281 - 2⁶ = 998325217 is a prime.

It is a super-2 number, since 2×998325281² = 1993306733367457922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (998325287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 107291 + ... + 116223.

It is an arithmetic number, because the mean of its divisors is an integer number (67219416).

Almost surely, 2^998325281 is an apocalyptic number.

It is an amenable number.

998325281 is a deficient number, since it is larger than the sum of its proper divisors (77185375).

998325281 is a wasteful number, since it uses less digits than its factorization.

998325281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9112.

The product of its digits is 311040, while the sum is 47.

The square root of 998325281 is about 31596.2858735010. The cubic root of 998325281 is about 999.4414484115.

The spelling of 998325281 in words is "nine hundred ninety-eight million, three hundred twenty-five thousand, two hundred eighty-one".